refactor(actionsheet): modify the context as a required parameter

Author: 2534290808

example/lib/action_sheet_example.dart

@@ -7,7 +7,7 @@ class ActionSheetExample extends StatelessWidget {
       appBar: AppBar(title: Text("ActionSheet"),),
       body: Center(
         child: FlatButton(onPressed: (){
-          ActionSheet.show(context: context,data:["Item1","Item2","Item3"]);
+          ActionSheet.show(context,data:["Item1","Item2","Item3"]);
         }, child: Text("ActionSheet")),
       ),
     );

example/lib/cell_example.dart

@@ -36,7 +36,7 @@ class CellExample extends StatelessWidget {
             secondaryText: "说明文字",
             onPressed: () {
               ActionSheet.show(
-                  context: context,
+                  context,
                   data: ["1", "3", "sdfs"],
                   onPress: (details) {
                     print(details.toString());

example/lib/picker_example.dart

@@ -0,0 +1,28 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_weui/flutter_weui.dart';
+class DialogExample extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: Text("Dialog"),),
+      body: Center(
+        child: Column(
+          children: <Widget>[
+            FlatButton(onPressed: (){
+              WDialog.show(context,title: "Title",content: "Context",actions: [
+                DialogActions(text: "取消"),
+                DialogActions(text: "确定")
+              ]);
+            }, child: Text("Dialog_Android")),
+            FlatButton(onPressed: (){
+              WDialog.show(context,title: "Title",content: "Context",actions: [
+                DialogActions(text: "取消"),
+                DialogActions(text: "确定")
+              ],platform: TargetPlatform.iOS);
+            }, child: Text("Dialog_Ios"))
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/action_sheet.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 
 class ActionSheetPressDetails {
   ActionSheetPressDetails({this.index, this.text});
+
   final int index;
   final String text;
 
@@ -16,8 +17,8 @@ typedef ActionSheetPressVoidCallBack = void Function(ActionSheetPressDetails det
 ///展示手机action
 class ActionSheet {
   ///展示ActionSheet
-  static show({
-    BuildContext context,
+  static show(
+    BuildContext context, {
     List<String> data,
     ActionSheetPressVoidCallBack onPress,
     Color containerColor = const Color(0xEFEFF4),
@@ -60,7 +61,7 @@ class ActionSheet {
 }
 
 class _Cell extends StatefulWidget {
-  _Cell({Key key, this.text, this.onPressed,this.textColor}) : super(key: key);
+  _Cell({Key key, this.text, this.onPressed, this.textColor}) : super(key: key);
 
   final String text;
   final VoidCallback onPressed;

lib/cells.dart

@@ -54,7 +54,7 @@ class _CellSelectState extends State<CellSelect> {
 
   _handleTap(BuildContext context) {
     ActionSheet.show(
-        context: context,
+        context,
         data: widget.options,
         onPress: (detail) {
           setState(() {